Periodic Table:

Element 95 - Americium / Americium

(Latin / English)

Mass Number

Atomic Mass

% Abundance

Nuclear Spin

241 *

241.0568

0

5/2-

243 *

243.0614

0

5/2-

(* = unstable isotope)

Electron Configuration:

[Rn] 5f7 7s2

Relative Atomic Mass:

243.06

State (25°C, 1 atm):

solid, metal

Density:

13670 kg/m3

Melting Temperature:

1267 K

Boiling Temperature:

2880 K

© W. Bauer, 1999